Joseph e



(No Model.)

J. R. 8v S. K. AMES.

l LOCK. No. 354,526. Patented Dec. 21', 1886.

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p UNITED .STATES PATENT OEEICE.

JOSEPH R. AMES AND STEPHEN K. AMES, OF ANSONVILLE, PENNSYLVANIA,ASSIGNORS OF ON E-HALF TO BENJ. F. WISE AND EDVARD R. AMES, BOTH OF SAMEPLACE.

LOCK.

SPECIFICATION forming part of Letters Patent No. 354,526, dated December21, 1886.

l Application filed March 2G, 1886. Serial No. 196.689. (No model.)

To all whom it may concern:

Be it known that we, JOSEPH R. AMES and STEPHEN K. AMES, citizens of4the United States, residing at Ansonville, in the county of Clearfieldand State of Pennsylvania, have invented certain new and usefulImprovements in Locks; and we do declare the following to be a full,clear, and exact description of the invention, such as will enableothers Skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters and iigures of reference marked thereon, which form apart ofthis specification.

'This invention relates to locks; and it consists in the novel featureshereinafter more particularly set forth and claimed, and shown in theannexed drawings, in which- Figure l is a view in elevation with theside removed, showing the latch-bolt out and the lockingbolt in. Fig. 2is a similar viewshowing the latch-loolt in by full lines and out bydotted lines, and also showing the locking-bolt projected. Fig. 3 is asectional View on the line x x of Fig. 2,parts ofthe bolt being brokenaway on each side. Fig. 4L is a view of the lower portion of the lockwith the side removed.

- The object of the invention is to provide means for locking thekey-operated bolt in a projected and retracted position by gravityleverswhich are arranged to extend in opposite directions, the levers lockingthe bolt against movement in one direction only, as

will presently appear.

Case A, containing the operating parts, is provided with a removableside, A. Latchbolt B, knob-operated tumbler O,gravity-tum bler D, forprojecting thclatch-bolt and interlocking therewith and with thelocking-bolt, and the dead-latch E are of substantially the sameconstruction and combination as shown in Patent No. 327,053, granted J.It. Ames September 29, 1885.

Locking-bolt Fis provided with two notches, a c', in its upper side toreceive the projection d of the gravity-tumbler, by which the bolt islocked in a projected or retracted position, as clearly set forth in theabove-mentioned patent.

Two gravity-levers, G G, similarly constructed, are pivoted at a pointbetween their ends to the case by pivots g g', respectively. For thesake of convenience,those ends of the levers farther apart and nearerthe ends of the case will be designated the outer ends, and those neareror adjacent to each other the inner77 ends. more remote from theirpivotal points than the inner ends, and being heavier gravitate, therebyeffecting a corresponding elevating of the inner ends. Recesses HH,i`ormed in the side of the locking-bolt, permit the levers to bewholly seated therein, and shoulders h h form stops againstwhich theouter ends of the levers abut and hold the bolt in a projected or Theouter ends of the levers are retracted position7 as indicated in Figs. 2and l, respectively. j

The levers G G may bearranged singly, as shown to the right in Fig. 3,or in pairs, as shown to the lett in same figure; or a single one may belocated to the right, and two to the loft, as shown. This is thepreferable construction,as greater stability is thereby given the boltin its projected position, and the foreing of the same by means otherthan the key rendered doubly difficult. In the latter case a lever willbe located on each side of the locking-bolt and seated in correspondingrecesses in each side thereof, and the 'pivot g will be extended fromside to side of the case and pass through a longitudinal slot, f, in thebolt to permit of the free sliding movement of thelat.-

ter.

The levers are so arranged that their inner ends project across thenotch o'. and extend a little above its bottom when their outer ends arein engagement with the shoulders or stops on the bolt. Thus it will beseen thatby inserting the key and partially turning the samef IOG claim,and desire to secure by Letters Patent, 1s-

1. In a lock,the combinatiomwith thelocking-bolt and stops located at ornear each end, of two pivot-ally-supported gravity-levers extending inopposite directions, having their outer 'ends alternately engaging withthe stops and their inner ends adapted to be 'engaged alternately by thekey, whereby the corresponding outer end is disengaged from its stop andthe bolt simultaneously moved by the key,

spondingly elevates their outer ends and disengages them from the slots,substantially as set forth.

3. The combination of the case, the lockingbolt longitudinally slotted,a pair of gravitylevers, one being located on each side of the bolt, apivot for the levers extending through the slot in the bolt and thesides of the case, and stops on each side of the bolt engaged by thegravitating ends of the levers, the opposite ends of which levers areprojected beyond the pivot to be engaged by the key, a correspondinggravitatin g lever extending in an opposite direction with its inner endin close proximity to the inner ends of the first-mentioned levers,andacorresponding stop for the gravity end, vsubstantially as set forth.

In testimony whereof. we affix our signatures in presence of twowitnesses.

JOSEPH R. AMES. STEPHEN K. AMES.

Witnesses:

S. T. BRooKBANK, FRANK G. HARRIs.

